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9y = 18x + 72
y = 2x + 8
This is equation of a straight line
Two points on the line are ( 0 , 8 ) and ( 4 , 16 )
Plot these points and draw a straight line through them.
If: -18x+9y = 72
Then the x intercept is at (-4, 0) when y = 0
Then the y intercept is at (0, 8) when x = 0
Join the points together to form a straight line and then that is your graph.
DSFAJK sdafjkakl; HFDSKL
We are going to get the two intercepts by dividing through by 72.
x/(-4) + y/8 = 1
The x intercept is -4 and the y intercept is 8.
Graph/draw your line through them.
Rewrite −18x+9y=72 solving for y:
This format tells you the y-intercept is (0,8) and the slope of the line is 2 = +2/+1.
Starting from the point (0,8), move UP 2 units, and move RIGHT 1 unit to the next point (1,10).
You now have 2 points: (0,8) and (1,10). Plot the 2 points and draw a line through them.
See below.
I'd determine the x and y intercepts, plot them, then draw the line.
−18x+9y=72
It is easy to see that if x = 0, then y = 8, so one point is (0,8)
With y = 0, we can find that x = -4, so the other point is (-4,0)
Plot those and draw the line.
First, express in in "y = mx + c" format
-18x + 9y = 72... divide everything by 9
==> -2x + y = 8
... add 2x to both sides
==> y = 2x + 8
the "8" is now the y-intercept, the point (0,8) on the graph
Now, find the x-intercept. That's when y = 0
so
==> 0 = 2x + 8
==> 2x = -8
==> x = -4
so the x-intercept is (-4,0)
now draw a line through thee two points and you have your graph
9 times 8 is 72. The graphs are 8 and 9.
With paper ND or
1) Change into y = mx + c format
The line will have a gradient of 2 and will pass through (0,8)
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Answers & Comments
:-
9y = 18x + 72
y = 2x + 8
This is equation of a straight line
Two points on the line are ( 0 , 8 ) and ( 4 , 16 )
Plot these points and draw a straight line through them.
If: -18x+9y = 72
Then the x intercept is at (-4, 0) when y = 0
Then the y intercept is at (0, 8) when x = 0
Join the points together to form a straight line and then that is your graph.
DSFAJK sdafjkakl; HFDSKL
We are going to get the two intercepts by dividing through by 72.
x/(-4) + y/8 = 1
The x intercept is -4 and the y intercept is 8.
Graph/draw your line through them.
Rewrite −18x+9y=72 solving for y:
9y = 18x + 72
y = 2x + 8
This format tells you the y-intercept is (0,8) and the slope of the line is 2 = +2/+1.
Starting from the point (0,8), move UP 2 units, and move RIGHT 1 unit to the next point (1,10).
You now have 2 points: (0,8) and (1,10). Plot the 2 points and draw a line through them.
See below.
I'd determine the x and y intercepts, plot them, then draw the line.
−18x+9y=72
It is easy to see that if x = 0, then y = 8, so one point is (0,8)
With y = 0, we can find that x = -4, so the other point is (-4,0)
Plot those and draw the line.
First, express in in "y = mx + c" format
-18x + 9y = 72... divide everything by 9
==> -2x + y = 8
... add 2x to both sides
==> y = 2x + 8
the "8" is now the y-intercept, the point (0,8) on the graph
Now, find the x-intercept. That's when y = 0
so
==> 0 = 2x + 8
==> 2x = -8
==> x = -4
so the x-intercept is (-4,0)
now draw a line through thee two points and you have your graph
9 times 8 is 72. The graphs are 8 and 9.
With paper ND or
1) Change into y = mx + c format
9y = 18x + 72
y = 2x + 8
The line will have a gradient of 2 and will pass through (0,8)